Dell PowerVault 715N (Rackmount NAS Appliance) - Manual (Page 34)

available disks.
8. Click Next.
9. After all selections are made, verify your settings and click Next.
10. If you want to select a different disk for the volume you are creating, click Modify to display the Modify Disks
dialog box.
11. Click the disk you want to change, select a disk from the Disk drop-down menu, and then click OK.
12. Click Assign a drive letter, select the drive letter, and then click Next.
13. Make sure Format this volume and NTFS are selected.
14. Type a volume label and an allocation unit size, if you chose to use a size other than the default.
15. Click Next, and then click Finish.
Working With Mirrors
A mirrored volume is a volume that duplicates your data to two physical disks. A mirror provides redundancy by
simultaneously writing the same data to two separate volumes that reside on different disks. If one of the disks fails, data
continues to be written to and read from the unaffected disk.
This section discusses how to add, remove, or break a mirror.
Adding a Mirror
1. Launch Array Manager.
See " Launching Array Manager From the NAS Manager ."
2. In the Dell OpenManage Array Manager window, click the Volumes folder to expand it.
3. In the left pane, right-click a volume name, and then click Add Mirror.
The Add Mirror Wizard displays.
4. Click Next.
5. Select Custom Mode, and then click Next.
6. Verify that the correct disk for mirroring the volume is selected. If the correct disk is not selected, click Modify,
and then go to step 7. If the correct disk is selected, go to step 9.
7. From the Modify Disk Selection window, click the disk you want to change.
A drop-down box appears.
8. Click the arrow, select a different disk from the drop-down box, and then click OK.
9. Click Next, and then click Finish to create the mirror.
Removing a Mirror
Removing a mirror from a volume removes or destroys the data from the selected mirror and leaves the other mirror
intact. After you remove a mirror, the space on the disk used by the removed mirrored volume becomes unallocated
space. The remaining (no longer mirrored) volume becomes a simple volume on the disk.
To remove a mirror, perform the following steps:
1. Launch Array Manager.